Period

So my first period after I gave birth was on April 15 and it lasted for 5 days. It has been 31 days and I haven’t gotten another one sins then. I’m starting to think I might be pregnant again but I’m too scared to take a test because I don’t want to be pregnant. It’s way too soon! My question for you guys is, would it be possible I am or could it just be I’m gonna be irregular now. How long should I wait if i was to take a test. Not sure what to do or think. Any suggestions?